Cardiothoracic Imaging
Contents Anatomy Techniques Findings Cases References
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Magnetic resonance imaging



Magnetic resonance
Motion MRI
Motion MRI

COMMENTS

Magnetic resonance imaging depends on immersing the body in a steady, strong magnetic field, commonly up to 1.5 Tesla (i.e. 15,000 Gauss for reference, the earth's magnetic field is about 0.5 Gauss). Some modern "whole-body" (i.e. apertures wide enough to accept a person's thorax) machines now operate at 4 or more Tesla. Hydrogen atoms, pervasive in the water which makes up about 70% of the body's mass, have a dipole property by virtue of their characteristic spins.

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SHORTCUTS: See the Contents page for complete listing of all pages and topics.

   
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December 18, 2004 (PL)
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